1&period; Gear&colon; They are innovated symmetrical arrayed highspeed synchronous gears&comma; and are made from international standard gear steel&period; Compared with common gears&comma; they are more wearable and steadier&comma; and more laborsaving&period; 2&period; Chain&colon; Adopts high strong chain and high precision welding technology&comma; meet ISO3077-1984 international standard&semi; Fits for gusty overload work conditions&semi; Takes your hands a better feeling&semi; Multi-angle operation&lpar;with 45° &rpar;&period; 3&period; Hook&colon; Made of high-class alloy steel&comma; it has high strength and high security&semi; By using newy desing&comma; weight will never escape&period; 4&period; Limit Switch&colon; Using limit switch component in designation to protect chain and ensure security&period; Components&colon; Main components are all made of high-class alloy steel&comma; with high precision and security&period; 5&period; Framework&colon; Slight design and more beautiful&semi; With less weight and smaller work area&period; 6&period; Plastic Plating&colon; By adopting advanced plastic plating technology inside and outside&comma; it lookslike a new one after years of operation&period; 7&period; Encloser&colon; Made of high-classed steel&comma; more firmly and dexterous&period;